Categories: Science & Technology

Kinsight system uses Microsoft’s Kinect sensors to find lost keys and wallets

Two computer scientists have developed a depth-camera based system that keeps track of household objects as they are moved around a building.

The project – dubbed Kinsight – relies on several of Microsoft’s Kinect sensors attached to a computer running the team’s software.

Although the project is still at an experimental stage, it has been shown to work in a “real-world scenario”.

Details of the system were recently outlined at a conference in China and were subsequently reported by New Scientist.

“Imagine if we had a system that could keep account of all the objects that we interact with in our daily lives,” the researchers said.

“By keeping track of the locations of the objects, we could build a smart search engine for our home that could answer queries like – where are my eye glasses, or my TV-remote, or my wallet?”

Two computer scientists have developed a depth-camera based system that keeps track of household objects as they are moved around a building

Although alternative solutions, such as the use of radio-frequency identification chips already exists, the men said their system was many times cheaper due to the high cost of RFID readers.

The researchers noted that running a computer program that simultaneously tracked all the owner’s objects in real-time would be too processor-intensive.

So they based their design around the principle that objects only change locations when humans move them.

As a result the system focuses on tracking human figures and then looking for objects that have changed position in their vicinity.

Although the Kinect sensor’s capabilities are limited – it only sees objects up to 11 feet (3.4 m) away and only provides “skeleton data” at 15 frames/second – the Kinsight program has commonsense notions built into it to improve accuracy: so it knows that a coffee cup is most likely to be found at a study desk, or kitchen sink, but not inside a bath.

“This means that, when in doubt, an object recognition algorithm can use this knowledge to identify an object by analyzing the likelihood of it being at some location, or looking for the candidate objects in their other locations,” the researchers said.

Algorithms were also created to help the computer learn the appearance of objects and the context they were likely to be used in by analyzing the data gathered.

To prove the system worked the two scientists labeled 48 objects – including knives, forks, keys and a Rubik’s cube – and identified 80 possible locations around a house.

They then asked volunteers to move the items around according to randomly generated patterns.

The results suggested room for improvement – errors were more likely if the objects were very small, far away, transparent or placed too closely together – but the team said these problems should be addressed by using more sensors per room and adopting more sensitive depth-cameras.

In the meantime, they say that even when the program does lose track of possessions, it can still say were they were last seen which may still prove helpful.

 

Nancy Clayson

Nancy is a young, full of life lady who joined the team shortly after the BelleNews site started to run. She is focused on bringing up to light all the latest news from the technology industry. In her opinion the hi-tech expresses the humanity intellectual level. Nancy is an active person; she enjoys sports and delights herself in doing gardening in her spare time, as well as reading, always searching for new topics for her articles.

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